Light bulb



FIG. 1 is a side view of a light bulb showing an exemplary embodiment of our new design;

FIG. 2 is a perspective side view of the light bulb of FIG. 1;

FIG. 3 is a perspective side view of the light bulb of FIG. 2;

FIG. 4 is a bottom view of the light bulb of FIG. 1; and,

FIG. 5 is a top view of the light bulb of FIG. 1. 

The ornamental design for the light bulb, as shown. 